Thursday, January 24, 2013

Geology photo: A gap in the record

I took this photo on a GSA pre-meeting field trip in 2010. This is near Red Rocks Amphitheater in Colorado. On the left are the Pennsylvanian-aged red rocks of the Fountain Formation. On the right is Precambrian gneiss. The gap in between represents 1.4 billion years. Cool!

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